Ticker: VNET, Company: 21Vianet Group, Inc., Type: SC 13G/A, Date: 2014-02-14
Original SEC Filing: Click here

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Webplus: VNET/20140214/SC_13G.A/1/000.htm SEC Original: formsc13ga.htm
SCHEDULE 13G (Rule 13d-102) (Amendment No. 1) 21Vianet Group, Inc. (Name of Issuer) Class A Ordinary Shares, par value US$0.00001 per share 90138A103 (CUSIP Number) December 31, 2013 (Date of Event Which Requires Filing of this Statement) ¨ Rule 13d-1(b) ¨ Rule 13d-1(c) ý Rule 13d-1(d) Page 2 of 7 Pages 13G ­ CUSIP No. 90138A103 1) NAME OF REPORTING

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Company Information:

Ticker: VNET, Company: 21Vianet Group, Inc., Type: SC 13G/A, Date: 2014-02-14CIK: 0001508475, Location: F4, SIC: 7370, SIC Desc: SERVICES-COMPUTER PROGRAMMING, DATA PROCESSING, ETC.
Business Phone & Address:
M5, 1JIUXIANQIAO EAST ROAD
Beijing 100016